2.12 Ungermann-Bass Net/One Make sure you choose the proper network option when you set up Windows. . Ungermann-Bass Net/One is based on Microsoft Network. Choose the Microsoft Network Or 100% Compatible option when running Windows Setup. . Ungermann-Bass Net/One LAN Manager is based on Microsoft LAN Manager. Choose the Microsoft LAN Manager option when running Windows Setup. Setup should correctly identify your network and the proper version number. In addition: If you are using an Ungermann-Bass network card with any network, including networks not produced by Ungermann-Bass, your system may not run correctly in 386 enhanced mode unless you have the proper settings in your SYSTEM.INI file. If you experience problems, follow these steps: 1. Open your SYSTEM.INI file by using a text editor such as Notepad. SYSTEM.INI is located in your Windows directory. 2. Find or add the [386Enh] section in the file. If you're using Notepad, you can find this section by choosing Find from the Search menu, typing [386Enh], and then choosing the OK button. 3. Find or add the TimerCriticalSection=10000 line in this section. 4. Save your SYSTEM.INI file. 5. Quit and restart Windows. . If you are using an Ungermann-Bass XNS transport stack, you must make sure it is configured not to use expanded memory when running Windows version 3.1 in 386 enhanced mode. .